A hearth alarm is a tool that detects smoke or warmth and sounds an alarm to warn folks in a constructing that there’s a fireplace. Hearth alarms are an essential a part of fireplace security, they usually will help to avoid wasting lives by giving folks sufficient time to evacuate a constructing earlier than it’s engulfed in flames.
There are various various kinds of fireplace alarms, however all of them work on the identical fundamental precept. When the alarm detects smoke or warmth, it sends a sign to a management panel. The management panel then sounds an alarm all through the constructing, warning folks to evacuate.